1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portlet.messageboards.action;
24  
25  import com.liferay.portal.kernel.servlet.SessionErrors;
26  import com.liferay.portal.kernel.util.ArrayUtil;
27  import com.liferay.portal.kernel.util.ParamUtil;
28  import com.liferay.portal.kernel.util.Validator;
29  import com.liferay.portal.security.auth.PrincipalException;
30  import com.liferay.portal.struts.PortletAction;
31  import com.liferay.portal.util.PortletKeys;
32  import com.liferay.portal.util.PropsValues;
33  import com.liferay.portal.util.WebKeys;
34  import com.liferay.portlet.PortalPreferences;
35  import com.liferay.portlet.PortletPreferencesFactoryUtil;
36  import com.liferay.portlet.messageboards.NoSuchMessageException;
37  import com.liferay.portlet.messageboards.model.MBMessageDisplay;
38  import com.liferay.portlet.messageboards.service.MBMessageServiceUtil;
39  
40  import javax.portlet.PortletConfig;
41  import javax.portlet.RenderRequest;
42  import javax.portlet.RenderResponse;
43  
44  import org.apache.struts.action.ActionForm;
45  import org.apache.struts.action.ActionForward;
46  import org.apache.struts.action.ActionMapping;
47  
48  /**
49   * <a href="ViewMessageAction.java.html"><b><i>View Source</i></b></a>
50   *
51   * @author Brian Wing Shun Chan
52   */
53  public class ViewMessageAction extends PortletAction {
54  
55      public ActionForward render(
56              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
57              RenderRequest renderRequest, RenderResponse renderResponse)
58          throws Exception {
59  
60          try {
61              long messageId = ParamUtil.getLong(renderRequest, "messageId");
62  
63              PortalPreferences preferences =
64                  PortletPreferencesFactoryUtil.getPortalPreferences(
65                      renderRequest);
66  
67              String threadView = ParamUtil.getString(
68                  renderRequest, "threadView");
69  
70              if (Validator.isNotNull(threadView)) {
71                  preferences.setValue(
72                      PortletKeys.MESSAGE_BOARDS, "thread-view", threadView);
73              }
74              else {
75                  threadView = preferences.getValue(
76                      PortletKeys.MESSAGE_BOARDS, "thread-view",
77                      PropsValues.MESSAGE_BOARDS_THREAD_VIEWS_DEFAULT);
78              }
79  
80              if (!ArrayUtil.contains(
81                      PropsValues.MESSAGE_BOARDS_THREAD_VIEWS, threadView)) {
82  
83                  threadView = PropsValues.MESSAGE_BOARDS_THREAD_VIEWS_DEFAULT;
84  
85                  preferences.setValue(
86                      PortletKeys.MESSAGE_BOARDS, "thread-view", threadView);
87              }
88  
89              MBMessageDisplay messageDisplay =
90                  MBMessageServiceUtil.getMessageDisplay(messageId, threadView);
91  
92              renderRequest.setAttribute(
93                  WebKeys.MESSAGE_BOARDS_MESSAGE, messageDisplay);
94  
95              return mapping.findForward("portlet.message_boards.view_message");
96          }
97          catch (Exception e) {
98              if (e instanceof NoSuchMessageException ||
99                  e instanceof PrincipalException) {
100 
101                 SessionErrors.add(renderRequest, e.getClass().getName());
102 
103                 return mapping.findForward("portlet.message_boards.error");
104             }
105             else {
106                 throw e;
107             }
108         }
109     }
110 
111 }